Stability Analysis of Stacked Interleaved DC-DC Step-Down Converter for Resistance Welding Application

2022 IEEE 63rd International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON 2022): Conference Proceedings 2022
Tetiana Karbivska, Yuliia Kozhushko, Mārcis Priedītis, Vitor Fernão Pires, Oleksandr Bondarenko

The study proposes stacked interleaved DC-DC step-down converter with low output ripple level for resistance welding application. The low ripple level in the output allows to provide high quality junctions of small-scale details without splashes of metal. Accurate state-space model of the converter is used to analyze converter stability by means of Nyquist stability criterion. The results show that the proposed stacked interleaved DC-DC step-down converter stays stable regardless of the variations of duty cycle.

Keywords
welding; thin materials; pulse shape
DOI
10.1109/RTUCON56726.2022.9978829
Hyperlink
https://ieeexplore-ieee-org.resursi.rtu.lv/document/9978829

Karbivska, T., Kozhushko, Y., Priedītis, M., Fernão Pires, V., Bondarenko, O. Stability Analysis of Stacked Interleaved DC-DC Step-Down Converter for Resistance Welding Application. In: 2022 IEEE 63rd International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON 2022): Conference Proceedings, Latvia, Riga, 10-12 October, 2022. Piscataway: IEEE, 2022, pp.151-156. ISBN 978-1-6654-6559-5. e-ISBN 978-1-6654-6558-8. Available from: doi:10.1109/RTUCON56726.2022.9978829

Publication language
English (en)